TM 5-3805-262-20
3-26. SIGNALING DEVICES TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. BACK-UP ALARM DOES NOT SOUND (OTHER CIRCUITS OPERATING OKAY) (Cont).
S t e p 3 . ( C o n t ).
b. If 24 volts not obtained, t e l l a s s i s t a n t t o s h u t o f f e n g i n e .
Repair black-red wire between back-up alarm and back-up alarm
switch (open circuit condition exists in wire) (page 5-174).
B e s u r e t r a n s p o r t / s e r v i c e l i n k i s d i s e n g a g e d ( p a g e 9 - 8 ) b e f o r e d r i v i n g
loader. Failure to do so could cause serious injury or death due to loss
o f s t e e r i n g c o n t r o l.
2. TURN SIGNALS DO NOT OPERATE.
Step 1.
Step 2.
Step 3.
Check that main switch of vehicle lights switch is placed in either
SER DRIVE or STOP LIGHT position.
Turn ignition key switch to on position.
Check if turn signals operate.
a. If turn signals operate, main switch was not in either SER DRIVE
or STOP LIGHT position.
b. If turn signals do not operate, go to step 2 below.
Set turn signal switch lever to position for left or right turn
s i g n a l.
Check if lamp in turn signal switch is on.
a. If turn signal switch lamp is not on, replace lamp (page 12-7),
and repeat the above.
If lamp is still off, go to step 4 below.
b. If turn signal switch lamp is on, go to step 3 below.
Turn ignition key switch to off position.
Remove turn signal switch cover (page 12-7).
Connect multimeter across violet wire terminal and light blue wire
t e r m i n a l.
Set turn signal switch lever to position for left turn signal.
Multimeter should indicate continuity.
Connect multimeter across violet wire terminal and white-blue wire
t e r m i n a l .
Set turn signal switch lever to position for right turn signal.
Multimeter should indicate continuity.
3-198
